222512132 has 6 divisors (see below), whose sum is σ = 389396238. Its totient is φ = 111256064.

The previous prime is 222512131. The next prime is 222512177. The reversal of 222512132 is 231215222.

It can be written as a sum of positive squares in only one way, i.e., 206956996 + 15555136 = 14386^2 + 3944^2 .

It is not an unprimeable number, because it can be changed into a prime (222512131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27814013 + ... + 27814020.

It is an arithmetic number, because the mean of its divisors is an integer number (64899373).

Almost surely, 2^222512132 is an apocalyptic number.

It is an amenable number.

222512132 is a deficient number, since it is larger than the sum of its proper divisors (166884106).

222512132 is a wasteful number, since it uses less digits than its factorization.

222512132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55628037 (or 55628035 counting only the distinct ones).

The product of its digits is 480, while the sum is 20.

The square root of 222512132 is about 14916.8405501969. The cubic root of 222512132 is about 605.9701503304.

Adding to 222512132 its reverse (231215222), we get a palindrome (453727354).

The spelling of 222512132 in words is "two hundred twenty-two million, five hundred twelve thousand, one hundred thirty-two".